CN108386573B

CN108386573B - Valve and method for producing a valve

Info

Publication number: CN108386573B
Application number: CN201810103989.7A
Authority: CN
Inventors: H·曼格; F·施赖伯
Original assignee: SVM Schultz Verwaltungs GmbH and Co KG
Current assignee: SVM Schultz Verwaltungs GmbH and Co KG
Priority date: 2017-02-03
Filing date: 2018-02-02
Publication date: 2020-06-30
Anticipated expiration: 2038-02-02
Also published as: US10851906B2; CN108386573A; DE102017102184A1; US20180224021A1; EP3358232B1; EP3358232A1

Abstract

The invention relates to a valve having a longitudinal axis (105), comprising a housing (200), a valve housing (300) and a sliding sleeve (400) extending along the longitudinal axis, wherein the housing has at least one contact surface (235) against which the sliding sleeve rests, the valve housing at least partially surrounds the sliding sleeve and is connected thereto in a manner that is resistant to sliding at least in the direction of the housing, the valve housing has a retaining edge (305) that is radially external with respect to the longitudinal axis, and the housing has at least one retaining element (205) that circumferentially clamps the retaining edge, such that the valve housing is tensioned along the longitudinal axis toward the housing in the event of elastic deformation of the valve housing, and the valve housing has an end face facing the housing, which is inclined as a result of the elastic deformation from an orientation oriented transversely to the longitudinal axis. The invention also relates to a method for manufacturing such a valve.

Description

Valve and method for producing a valve

Technical Field

The invention relates to a valve, in particular a slide valve, which can be used, in particular, in an automatic transmission of a motor vehicle. The invention also relates to a method for manufacturing such a valve.

Background

Many types of very different valves are known. The spool valve can typically assume at least two states and in this case selectively connects a plurality of connections, for example a pressure connection, a working connection and a tank connection, to one another. Thereby enabling control of fluid flow, e.g. liquid flow or gas flow.

Disclosure of Invention

The object of the invention is to implement the known valve alternatively, for example, in a manner that can be produced more easily. Said valves are also known as pressure regulating valves. The pressure regulating valve has a certain number of positions.

According to the invention, this is achieved by a valve and a method according to the following. The valve according to the invention, in particular a slide valve, has a longitudinal axis, with a housing, a valve housing and a sliding sleeve extending along the longitudinal axis, wherein the housing has at least one contact surface against which the sliding sleeve contacts, the valve housing at least partially surrounds the sliding sleeve and is connected thereto in a sliding-resistant manner at least in the direction of the housing, the valve housing has a retaining edge which is radially external with respect to the longitudinal axis, and the housing has at least one retaining element which grips around the retaining edge, so that the valve housing is tensioned along the longitudinal axis toward the housing in the case of elastic deformation of the valve housing, and the valve housing has an end face which is oriented toward the housing and which is inclined by elastic deformation away from an orientation oriented transversely to the longitudinal axis.

The invention relates to a valve, in particular a slide valve, having a longitudinal axis. The valve has a housing, a valve housing, and a sliding sleeve extending along a longitudinal axis.

The housing has at least one contact surface against which the sliding sleeve contacts.

The valve housing at least partially surrounds the sliding sleeve and is connected to the sliding sleeve in a sliding-proof manner at least in the direction of the housing.

The valve housing has a retaining edge radially outward with respect to the longitudinal axis.

The housing has at least one holding element which grips around the holding edge (umgreift) in such a way that the valve housing is tensioned along the longitudinal axis toward the housing in the case of elastic deformation of the valve housing.

With such a valve, it is possible to determine the position of the housing, the valve housing and the sliding sleeve relative to one another in a particularly simple and reliable manner.

The housing is preferably constructed of metal. The valve housing is preferably made of plastic. The sliding sleeve is preferably made of metal. Such materials have proven suitable for typical applications.

Preferably, the housing has a fastening recess for the sliding sleeve, wherein the contact surface is arranged in the fastening recess. Therefore, the sliding sleeve can be advantageously stabilized.

According to one embodiment, the valve housing completely surrounds the sliding sleeve. The valve housing may alternatively only partially enclose the sliding sleeve.

Preferably, the valve housing is connected in a form-fitting manner to the sliding sleeve. This enables a simple and stable connection to be established. However, other connection types, in particular a material bond or a force bond, can also be used accordingly.

According to one embodiment, the sliding sleeve has a circumferential groove on the outside, into which a complementary projection of the valve housing engages in order to form a form-locking connection.

According to one embodiment, the sliding sleeve has a circumferential outer projection which engages in a complementary groove of the valve housing in order to form a form-locking connection.

The retaining edge is preferably designed in the form of a ring. This enables a simple encircling of the clamping holding edge. The retaining rim can also be an integral part of the disk-shaped part of the valve housing. The retaining rim can be formed radially as an excess portion of the valve housing.

According to one embodiment, the holding element is designed as a projection directed radially inward with respect to the longitudinal axis. According to another embodiment, the holding element is designed as a ring which projects axially on the housing.

Preferably, the holding element occupies an angle of 40 ° to 50 °, in particular 45 °, with respect to the longitudinal axis. Thus, a good retention effect can be achieved in practice.

According to an advantageous embodiment, the retaining edge has an edge inclined with respect to the longitudinal axis, against which the retaining element rests. The angle at which the holding element is bent can thereby be reduced.

Preferably, the inclined edge of the retaining edge forms an angle of 40 ° to 50 °, in particular 45 °, with respect to the longitudinal axis. The holding element can advantageously be bent or pressed (vertemmt) to the same extent.

The at least one holding element can advantageously be pressed against the holding edge. This enables simple production with reliable retention.

Preferably, the valve housing is configured to be elastically deformable in the axial direction with respect to the longitudinal axis in the region of the retaining edge. Further preferably, the valve housing is designed to be elastically deformable relative to the retaining rim radially inwardly with respect to the longitudinal axis. This can be achieved, for example, by suitable material selection and/or by suitable shaping.

Before the deformation, in particular a distance or an air gap of the valve housing relative to the housing can be provided in order to have room for the deformation.

The end face can in particular be inclined by less than 5 °, in particular by less than 3 °, from an orientation oriented transversely to the longitudinal axis.

The sliding sleeve is preferably pressed against the contact surface as a result of the elastic deformation. Thus, the position of the sliding sleeve relative to the housing is determined.

According to one embodiment, a control piston which can be moved against the force of a return spring is arranged in the sliding sleeve. This corresponds to a typical embodiment of a slide valve.

It should be noted, however, that this embodiment according to the invention is also applicable to other types of valves.

According to an advantageous embodiment, it is provided that the housing has an electromagnet as the drive for the control piston, the contact surface is arranged on a core of the electromagnet and the core has a passage opening in the region of the contact surface, which passage opening receives an armature rod which is in operative connection with an armature of the electromagnet. This corresponds to a typical embodiment of a solenoid-operated valve.

It should be noted, however, that this embodiment according to the invention is also applicable to other types of manipulation.

The invention also relates to a method for manufacturing a valve. In particular, the invention can be directed to a valve, wherein all of the embodiments and variants described in relation to the valve can be used.

The method has the following steps:

-providing a housing having at least one abutment surface and having a number of retaining elements;

-providing a valve housing having a retaining edge;

-providing a sliding sleeve extending along a longitudinal axis;

-arranging the sliding sleeve such that it abuts against the abutment surface of the housing;

-arranging a valve housing such that it at least partially surrounds the sliding sleeve and is connected with the sliding sleeve, thereby at least preventing the valve housing from moving on the sliding sleeve along the longitudinal axis towards the housing, and such that the retaining rim is arranged radially outside with respect to the longitudinal axis;

deforming the retaining element such that the retaining element grips around the retaining rim, so that the valve housing is tensioned along the longitudinal axis toward the housing with elastic deformation of the valve housing,

the end face of the valve housing facing the housing is inclined by elastic deformation away from the orientation oriented transversely to the longitudinal axis.

By means of such a method, a valve can be advantageously produced, wherein the advantages already mentioned above can be achieved.

In this case, the end face of the valve housing facing the housing is preferably initially mounted with a distance or an air gap from the housing, wherein the distance or the air gap is at least partially reduced only upon elastic deformation. This enables a space to be provided for the elastic deformation in an advantageous manner.

In this connection, it should be noted in particular that all the features and characteristics described with reference to the device and also the modes can also be used in the sense of the present invention in the expression of the method according to the invention and are considered to be disclosed together. The same applies in the reverse, which means that features of the structure, i.e. in terms of the device, which are mentioned only with reference to the method, can also be considered and claimed within the scope of the device claims and are likewise part of the disclosure.

Drawings

The invention is illustrated schematically in the drawings, particularly by way of example. Wherein:

figure 1 shows the components of a valve according to the invention during manufacture,

figure 2 shows a valve according to the invention.

Detailed Description

In the drawings, the same or mutually corresponding elements are denoted by the same reference numerals, respectively, and thus the same or mutually corresponding elements will not be explained again as long as they are not useful. The disclosures contained throughout this specification can be transferred in meanings to the same parts having the same reference numerals or the same component names. The orientation chosen in the description (for example upper, lower, lateral, etc.) also makes reference to the figures described directly and illustrated and can be transferred in the sense of a change of orientation to a new orientation. Furthermore, individual features and combinations of features in the different embodiments shown and described can also constitute independent, inventive or inventive solutions themselves.

FIG. 1 illustrates components of a valve 100 during manufacture according to an embodiment of the present invention.

The valve 100 extends along a longitudinal axis 105. The valve 100 is substantially rotationally symmetrical about a longitudinal axis 105, wherein, for example, a rotationally symmetrical offset exists at the interface.

The valve 100 has a housing 200, which is shown from the outside in fig. 1.

An electromagnet 210 is provided in the housing 200. The electromagnet is only partially visible in the figure, as it is largely covered by the housing 200.

The electromagnet 210 has an armature 212. An armature rod 214 is mounted on the armature. The armature 212 is linearly movable along the longitudinal axis 105 in an armature space 216.

To drive the armature 212, the electromagnet 210 has a coil, which is covered by the housing 200 in this figure and is therefore not visible.

The electromagnet 210 also has a magnetic core 220. As shown, it projects slightly from the housing 200 and closes the pot-shaped housing 200 in the direction of the valve housing 300.

A fixing recess 230 is formed in the magnetic core 220. The function of the fixing recess is explained in more detail below. An abutment surface 235 is formed in the fastening recess 230, which forms the base of the fastening recess 230.

Furthermore, a through-opening 225 is formed in the magnet core 220, which communicates the armature 216 with a fastening recess 230. The armature rod 214 extends from the armature 212 through the through-hole 225.

The housing 200 is currently constructed of metal.

The valve 100 also has a valve housing 300. The valve housing is currently made of plastic. Preferably, the valve housing 300 is manufactured as a plastic injection molded part.

Further, the valve 100 has a sliding sleeve 400. The sliding sleeve is currently constructed of metal.

The valve housing 300 surrounds the sliding sleeve 400. Here, the sliding sleeve 400 is oriented such that the sliding sleeve extends along the longitudinal axis 105.

The sliding sleeve 400 is accommodated in the already mentioned fixing recess 230 and is secured by it in a direction transverse to the longitudinal axis 105. Here, the sliding sleeve 400 rests against the contact surface 235 and is prevented from moving to the right by the contact surface 235.

In the sliding sleeve 400, a circumferential groove 410 is formed on the outside. Complementary to the groove, a projection 310 is formed on the valve housing 300, which engages in the groove 410. The sliding sleeve 400 and the valve housing 300 are therefore connected to one another in a form-fitting manner. In particular, the sliding sleeve 400 is no longer able to move along the longitudinal axis 105 relative to the valve housing 300. This applies to both directions along the longitudinal axis 105, but in particular to the direction towards the housing 200. It can also be said that the valve housing 300 is prevented from moving on the sliding sleeve 400.

The valve housing 300 has an end face 320 which is directed toward the housing 200.

The valve housing 300 has a retaining edge 305 radially on the outside relative to the end face 320. The retaining rim is of annular design. The retaining edge has a beveled edge 307 on its side pointing to the left in the drawing. This edge, as shown, occupies an angle of approximately 45 ° with respect to the longitudinal axis 105. This applies to the cross-sections shown here, but would also apply to all other cross-sections, i.e. when the cross-section is rotated about the longitudinal axis 105.

The housing 200 has a plurality of holding elements 205 on the left side. These holding elements are formed as elements projecting on the housing 200. Since the valve 100 is shown in fig. 1 in a not yet completely assembled state, the retaining elements 205 are oriented in a horizontal state. Two of the holding elements 205 can be seen in the cross-sectional view shown in fig. 1.

The retaining element 205 can be pressed radially inward in order then to engage with the inclined edge 307 and to establish a connection between the valve housing 300 and the housing 200. This will be explained further below with reference to fig. 2.

The valve 100 has a pressure port 120, a working port 130, and a tank port 140.

The pressure connection 120 is formed on the radial side of the valve 100. The pressure connection is used to convey a fluid under pressure, which is to be controlled by means of the valve 100. The fluid may be, for example, a gas or a liquid.

The working interface 130 is formed on the end side. The working interface is laterally defined by a filter cover 110 which is fitted over the valve housing 300. The filter housing 110 supports a filter by means of which fluid flowing out of the work interface 130 can be filtered. A filter is also provided for the pressure port 120.

The fluid flowing out of the working interface 130 can be used, for example, for various control or drive purposes, for example, in an automatic transmission of a motor vehicle.

The tank connection 140 is again formed on the radial side of the valve 100. In particular, a line to the tank can be connected to the tank connection, so that the fluid can be returned to the tank.

The work interface 130 interfaces with a work interface opening 430 in the sliding sleeve 40. Here, the work interface opening 430 is partially covered by the control piston 500. The connection of the working connection opening 430 to the working connection extends in the axial direction with reference to the longitudinal axis 105 and is rotated by 90 ° with respect to the view according to fig. 1/2.

In addition, a pressure connection opening 420 is formed in the sliding sleeve 400. The pressure port opening 420 is connected to the pressure port 120 and enables fluid to enter the interior of the sliding sleeve 400 from the pressure port 120.

Furthermore, a housing connection opening 440, which is connected to the housing connection 140, is formed in the sliding sleeve 400. The tank interface opening 440 enables fluid to enter the tank interface 140 from the interior of the sliding sleeve 440.

In the sliding sleeve 400, the working interface opening 430 is between the tank interface opening 440 and the pressure interface opening 420.

A control piston 500 is provided inside the sliding sleeve 400. The control piston is designed as shown, so that it can selectively connect the

respective ports

120, 130, 140 to one another. The control piston has a constriction in the intermediate region in order to form a flow channel. The flow channel is defined by the control edge of the control piston 500.

In the position shown in fig. 1, the working connection 130 is connected to the tank connection 140, while the pressure connection 120 is closed. If the control piston 500 is moved to the left by means of the electromagnet 210, the working connection 130 is connected to the pressure connection 120, and the tank connection 140 is closed. This corresponds to the usual function of a valve. Accordingly, based on the illustrated embodiments, reference is now made to spool valves. It should be noted, however, that the embodiments according to the invention can be applied not only to slide valves, but also to all types of valves. The description relating to the slide valve is given here only by way of example.

A support cover 450 is mounted on the left end of the sliding sleeve 400. The support cover closes the sliding sleeve 400.

A return spring 460 is disposed between the support cap 450 and the control piston 500. The return spring is supported on the support cover 450 and presses the control piston 500 to the right. Thus, the control piston 500 remains in the position shown in fig. 1 without a force being applied by the electromagnet 210. If, on the other hand, the already mentioned coil of the electromagnet 210 is supplied with current, the armature 212 moves to the left. This movement is transmitted via the armature rod 214 to the control piston 500, which likewise moves to the left against the force of the return spring 460. Thus, the valve 100 can be manipulated in a conventional manner.

Since the valve 100 is not yet completely assembled in the state shown in fig. 1, a visible gap remains between the end face 320 and the housing 200. This gap serves to provide space for deformation of the valve housing 300, as will be explained below.

Fig. 2 shows the valve 100 in an assembled state. In contrast to the state shown in fig. 1, the retaining elements 205 have been turned radially inward, so that they rest against the beveled edge 307 of the valve housing 300.

By means of these retaining elements 205, a force directed to the right is exerted on the valve housing 300. This results in the valve housing 300 being deformed elastically to the right slightly along the end side 320 in the radial direction on the outside. The plastic material of which the valve housing 300 is currently constructed has properties that allow for such elastic deformation. The space already mentioned above is present due to the first provided gap.

Thus, a spring force is exerted on the valve housing 300, which exerts a force directed to the right on the sliding sleeve 400, in particular also on the projection 310, with which the valve housing 300 is connected to the sliding sleeve 400.

The sliding sleeve 400 is also pressed against the contact surface 235 of the magnet core 220 as a result of this force. Therefore, the positional relationship of the housing 200, the valve housing 300, and the sliding sleeve 400 is permanently defined.

The transition from the state shown in fig. 1 to the state shown in fig. 2 can be achieved in particular by pressing. Here, the holding element 205 is bent inward.

The following describes structurally possible features of the proposed solution. The features described in the following in the form of structures can be combined with one another in any desired manner and can be included in any desired combinations in the claims of the present application. It is clear to a person skilled in the art that the invention has been derived from a solution with a minimum of features. In particular, the following describes advantageous or possible embodiments of the invention, but does not describe the only possible embodiment of the invention.

The invention comprises the following steps:

valve, in particular a slide valve, having a longitudinal axis (105), having a housing (200), a valve housing (300) and a sliding sleeve (400) extending along the longitudinal axis (105), wherein the housing (200) has at least one contact surface (235) against which the sliding sleeve (400) contacts, the valve housing (300) at least partially surrounds the sliding sleeve (400) and is connected to the sliding sleeve (400) in a sliding-proof manner at least in the direction of the housing (200), the valve housing (300) has a retaining edge (305) which is radially external with respect to the longitudinal axis (105), and the housing (200) has at least one retaining element (205), the at least one holding element grips around the holding edge (305) such that the valve housing (300) is tensioned along the longitudinal axis (105) toward the housing (200) when the valve housing (300) is elastically deformed.

The valve mentioned above, wherein the housing (200) is comprised of metal.

The valve mentioned above, wherein the valve housing (300) is made of plastic.

The above-mentioned valve, wherein the sliding sleeve (400) is made of metal.

The valve mentioned above, wherein the housing (200) has a fixing recess (230) for the sliding sleeve (400), the abutment surface (235) being arranged in the fixing recess (230).

The above mentioned valve, wherein the valve housing (300) completely surrounds the sliding sleeve (400).

The valve mentioned above, wherein the valve housing (300) is connected in a form-fitting manner to the sliding sleeve (400).

The valve mentioned above, wherein the sliding sleeve (400) has a circumferentially encircling outer groove (410) into which the complementary projection (310) of the valve housing (300) engages in order to form a form-fitting connection.

The valve mentioned above, wherein the sliding sleeve (400) has a circumferential outer projection which engages in a complementary groove of the valve housing (300) in order to form a form-fitting connection.

The valve mentioned above, wherein the retaining edge (305) is configured in a ring shape.

The valve mentioned above, wherein the retaining element (205) is designed as a projection directed radially inward with respect to the longitudinal axis (105), or the retaining element (205) is designed as a ring projecting axially on the housing (200).

The valve mentioned above, wherein the retaining element (205) occupies an angle of 40 ° to 50 °, in particular 45 °, with respect to the longitudinal axis (105).

The valve mentioned above, wherein the retaining edge (305) has an edge (307) which is inclined with respect to the longitudinal axis (105) and against which the retaining element (205) rests.

The valve mentioned above, wherein the inclined edge (307) of the retaining edge (305) forms an angle of 40 ° to 50 °, in particular 45 °, with respect to the longitudinal axis (105).

The valve as mentioned above, wherein the at least one holding element (205) is pressed against the holding edge (305).

The valve mentioned above, wherein the valve housing (300) is designed to be elastically deformable in the axial direction with respect to the longitudinal axis (105) in the region of the retaining edge (305).

The valve mentioned above, wherein the valve housing (300) is configured to be elastically deformable relative to the retaining rim (305) radially inwardly with respect to the longitudinal axis (105).

The valve mentioned above, wherein the valve housing (300) has an end face (320) facing the housing (200) which is inclined by elastic deformation away from an orientation oriented transversely to the longitudinal axis (105).

The valve mentioned above, wherein the end face (320) is inclined by less than 5 °, preferably by less than 3 °, from an orientation oriented transversely to the longitudinal axis (105).

The above-mentioned valve, wherein the sliding sleeve (400) is pressed against the abutment surface (235) due to elastic deformation.

The above-mentioned valve, wherein a control piston (500) which can be moved against the force of a return spring is arranged in the sliding sleeve (400).

The valve mentioned above, wherein the housing (200) has an electromagnet (210) as the drive for controlling the piston (500), the contact surface (235) is arranged on a magnetic core (220) of the electromagnet (210) and the magnetic core (220) has a through-opening (225) in the region of the contact surface, which through-opening accommodates an armature rod (214) operatively connected to an armature (212) of the electromagnet (210).

Method for producing a valve, in particular the above-mentioned valve, wherein the method has the following steps:

-providing a valve housing having a retaining edge;

-providing a sliding sleeve extending along a longitudinal axis;

the retaining element is deformed such that it grips around the retaining edge, so that the valve housing is tensioned along the longitudinal axis toward the housing with elastic deformation of the valve housing.

The claims now filed with this application and later filed are not biased to obtain broad protection.

If, in the course of further examination, in particular also of the related prior art, it is assumed that one or the other of the features is of decisive importance, although advantageous, for the purposes of the present invention, then, of course, an expression has now been pursued which, in particular, in the independent claims, no longer possesses such a feature. Such sub-combinations are also encompassed by the disclosure of the present application.

It is furthermore noted that the embodiments and variants of the invention described in the different embodiments and illustrated in the figures can be combined with one another in any desired manner. In this case, individual features or a plurality of features can be arbitrarily replaced with one another. These combinations of features are also disclosed together.

The references cited in the dependent claims indicate further developments of the embodiments of the independent claims by means of the features of the respective dependent claims. These constructive solutions, however, should not be understood as giving up the independent and specific protection to the features of the cited dependent claims.

The features disclosed in the description or the claims may, for brevity, be material to one skilled in the art, or may be provided in the sole form of a separate claim, or a plurality of such features, when such features are referred to or incorporated in other features as is appropriate for the particular application for which the invention is being practiced.

Claims

1. Valve having a longitudinal axis (105), having a housing (200), a valve housing (300) and a sliding sleeve (400) extending along the longitudinal axis (105), wherein the housing (200) has at least one contact surface (235) against which the sliding sleeve (400) contacts, wherein the valve housing (300) at least partially surrounds the sliding sleeve (400) and is connected to the sliding sleeve (400) in a manner that is resistant to sliding at least in the direction of the housing (200), wherein the valve housing (300) has a retaining edge (305) that is radially external with respect to the longitudinal axis (105), wherein the housing (200) has at least one retaining element (205) that circumferentially clamps the retaining edge (305) such that the valve housing (300) is tensioned along the longitudinal axis (105) toward the housing (200) in the event of elastic deformation of the valve housing (300), and wherein the valve housing (300) has an end face (320) that faces the housing (200), the end face is inclined by elastic deformation away from an orientation oriented transversely to the longitudinal axis (105).

2. Valve according to claim 1, characterized in that the housing (200) consists of metal, and/or the valve housing (300) consists of plastic, and/or the sliding sleeve (400) consists of metal.

3. Valve according to claim 1 or 2, wherein the housing (200) has a fixing recess (230) for the sliding sleeve (400), wherein the abutment surface (235) is arranged in the fixing recess (230).

4. Valve according to claim 1 or 2, wherein the valve housing (300) is connected in a form-fitting manner to the sliding sleeve (400).

5. Valve according to claim 1 or 2, characterized in that the retaining element (205) is configured as a projection directed radially inwards with respect to the longitudinal axis (105) or the retaining element (205) is configured as a ring projecting axially on the housing (200).

6. Valve according to claim 1 or 2, wherein the retaining edge (305) has an edge (307) which is inclined with respect to the longitudinal axis (105) and against which the retaining element (205) rests.

7. Valve according to claim 1 or 2, characterized in that the at least one holding element (205) is pressed against a holding edge (305).

8. Valve according to claim 1 or 2, wherein the sliding sleeve (400) is pressed against the abutment surface (235) due to elastic deformation.

9. A valve according to claim 1 or 2, wherein the valve is a spool valve.

10. Method for manufacturing a valve according to any of claims 1 to 9, wherein the method has the following steps:

-providing a valve housing having a retaining edge;

-providing a sliding sleeve extending along a longitudinal axis;

deforming the retaining element such that it grips around the retaining edge, so that the valve housing is tensioned along the longitudinal axis toward the housing with elastic deformation of the valve housing,

-wherein an end side (320) of the valve housing (300) facing the housing (200) is inclined by elastic deformation from an orientation oriented transversely to the longitudinal axis (105).